Confession time -
Back in 1976 I saw a bus indicating to pull out but decided not only was I going to overtake it but also turn left in front of it to go down the street.
As I was going past I had no chance of turning left but instead had to brake hard and was hit from behind.
Obviously I thought it was the bus but it was a car too close to me but the bus had braked hard causing 2 people to be taken to hospital

I parked up in the street that I intended to drive down and the other car parked behind me with a badly damaged front end.
The driver said he was just going to walk down the street to see if there was waste ground to put his leaking car onto.
The Cops arrived, asked where the other driver was and I ran down the street to look for him and saw him running off

I called the Cops and about 30 minutes later they came back with him but other Cops had arrived to breathalyse me.
One of the questions I was asked (and this was back in 1976) was "Did the bus indicate?" and I confirmed it did.
They then asked "Did you know if a bus indicates it is its right of way if you haven't started to overtake?" and of course I said I knew this even though I didn't.
Anyway, you'll be pleased to know that the driver behind me got blamed for everything because he was driving a stolen car and I've had to live with the guilt of putting 2 people into A&E.
You'll also be pleased to know that since that incident I have always let buses out if they are indicating and slow down if they aren't.